DTC U031A-82: Error Signal Received From TCM (BCM): Outline

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

DTC U031A:82 (BCM) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Error signal received from TCM
Detection condition	The body control module (BCM) received CAN error signal from the TCM.
Fail-safe	Not applicable
Possible cause	DTCs are stored in the TCM. TCM malfunction Body control module (BCM) malfunction
System wiring diagram	Not applicable
Connector diagram	Not applicable